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    • 51. 发明授权
    • Quasi-high availability hosted applications
    • 准高可用性托管应用程序
    • US08005955B2
    • 2011-08-23
    • US11739309
    • 2007-04-24
    • Dmitrii AndreevGregory Vilshansky
    • Dmitrii AndreevGregory Vilshansky
    • G06F15/173
    • H04L67/1008H04L67/1002H04L67/1023
    • A client-server application is provided to clients across a network. Requests from the client are accepted by a reliable proxy and sent to master and standby configurations of the client-server application. Each configuration processes the request to produce master and standby responses respectively. The proxy selects one response based on various criteria including a length being greater than the other response by more than a fixed value. The selected response is returned to the client over the internet. The configuration producing the selected response is thereafter designated as the master configuration. A recovery process may be initiated on the unselected configuration.
    • 通过网络向客户端提供客户端 - 服务器应用程序。 来自客户端的请求由可靠的代理接受,并发送到客户端 - 服务器应用程序的主配置和备用配置。 每个配置分别处理请求以产生主和备用响应。 代理根据各种标准来选择一个响应,包括一个长度大于另一个响应的长度大于固定值。 所选的响应将通过互联网返回给客户端。 然后,产生所选择的响应的配置被指定为主配置。 可以在未选择的配置上启动恢复过程。
    • 53. 发明授权
    • Quasi-high availability hosted applications
    • 准高可用性托管应用程序
    • US07266607B2
    • 2007-09-04
    • US10229647
    • 2002-08-27
    • Dmitrii AndreevGregory Vilshansky
    • Dmitrii AndreevGregory Vilshansky
    • G06F15/173
    • H04L67/1008H04L67/1002H04L67/1023
    • A client-server application is provided to clients across a network. Requests from the client are accepted by a reliable proxy and sent to master and standby configurations of the client-server application. Each configuration processes the request to produce master and standby responses respectively. The proxy selects one response based on various criteria including a length being greater than the other response by more than a fixed value. The selected response is returned to the client over the internet. The configuration producing the selected response is thereafter designated as the master configuration. A recovery process may be initiated on the unselected configuration.
    • 通过网络向客户端提供客户端 - 服务器应用程序。 来自客户端的请求由可靠的代理接受,并发送到客户端 - 服务器应用程序的主配置和备用配置。 每个配置分别处理请求以产生主和备用响应。 代理根据各种标准来选择一个响应,包括一个长度大于另一个响应的长度大于固定值。 所选的响应将通过互联网返回给客户端。 然后,产生所选择的响应的配置被指定为主配置。 可以在未选择的配置上启动恢复过程。
    • 55. 发明授权
    • Method and system for processing a database query by a proxy server
    • 代理服务器处理数据库查询的方法和系统
    • US07870120B2
    • 2011-01-11
    • US10855677
    • 2004-05-27
    • Dmitrii AndreevJagadish DasariLuu Q. NguyenGregory Vilshansky
    • Dmitrii AndreevJagadish DasariLuu Q. NguyenGregory Vilshansky
    • G06F7/00G06F17/30
    • G06F17/30528G06F17/30483
    • A method, system, and computer program product for processing a database query by a proxy server that is adapted to communicate with at least one database server. The database servers are respectively coupled to corresponding databases having tables that include a data isolation field pertaining to a group having subgroups. The data isolation field identifies a subgroup. The proxy server receives the query from an application server. The query is a request for data stored one of the databases. The proxy server determines whether the query has a data isolation problem. If the query does not have a data isolation problem, then the proxy server obtains a response to the query from one of the database servers and forwards the response to the application server. Otherwise, the proxy server records that a query error has occurred and returns an error code and/or empty dataset to the application server.
    • 一种用于处理适于与至少一个数据库服务器进行通信的代理服务器进行数据库查询的方法,系统和计算机程序产品。 数据库服务器分别耦合到具有包括与具有子组的组有关的数据隔离字段的表的相应数据库。 数据隔离字段标识一个子组。 代理服务器从应用程序服务器接收查询。 查询是存储数据库之一的数据请求。 代理服务器确定查询是否具有数据隔离问题。 如果查询没有数据隔离问题,则代理服务器从其中一个数据库服务器获取对查询的响应,并将响应转发给应用程序服务器。 否则,代理服务器记录发生查询错误,并将错误代码和/或空数据集返回给应用程序服务器。
    • 58. 发明申请
    • QUASI-HIGH AVAILABILITY HOSTED APPLICATIONS
    • 准高可用性主机应用
    • US20070198670A1
    • 2007-08-23
    • US11739309
    • 2007-04-24
    • Dmitrii AndreevGregory Vilshansky
    • Dmitrii AndreevGregory Vilshansky
    • G06F15/177
    • H04L67/1008H04L67/1002H04L67/1023
    • A client-server application is provided to clients across a network. Requests from the client are accepted by a reliable proxy and sent to master and standby configurations of the client-server application. Each configuration processes the request to produce master and standby responses respectively. The proxy selects one response based on various criteria including a length being greater than the other response by more than a fixed value. The selected response is returned to the client over the internet. The configuration producing the selected response is thereafter designated as the master configuration. A recovery process may be initiated on the unselected configuration.
    • 通过网络向客户端提供客户端 - 服务器应用程序。 来自客户端的请求由可靠的代理接受,并发送到客户端 - 服务器应用程序的主配置和备用配置。 每个配置分别处理请求以产生主和备用响应。 代理根据各种标准来选择一个响应,包括一个长度大于另一个响应的长度大于固定值。 所选的响应将通过互联网返回给客户端。 然后,产生所选择的响应的配置被指定为主配置。 可以在未选择的配置上启动恢复过程。